diff options
Diffstat (limited to 'board/atmel/at91sam9rlek/at91sam9rlek.c')
| -rw-r--r-- | board/atmel/at91sam9rlek/at91sam9rlek.c | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/board/atmel/at91sam9rlek/at91sam9rlek.c b/board/atmel/at91sam9rlek/at91sam9rlek.c new file mode 100644 index 0000000..8deecfd --- /dev/null +++ b/board/atmel/at91sam9rlek/at91sam9rlek.c @@ -0,0 +1,152 @@ +/* + * (C) Copyright 2007-2008 + * Stelian Pop <stelian.pop@leadtechdesign.com> + * Lead Tech Design <www.leadtechdesign.com> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <asm/arch/at91sam9rl.h> +#include <asm/arch/at91sam9rl_matrix.h> +#include <asm/arch/at91sam9_smc.h> +#include <asm/arch/at91_pmc.h> +#include <asm/arch/at91_rstc.h> +#include <asm/arch/gpio.h> +#include <asm/arch/io.h> +#if defined(CONFIG_RESET_PHY_R) && defined(CONFIG_MACB) +#include <net.h> +#endif + +DECLARE_GLOBAL_DATA_PTR; + +/* ------------------------------------------------------------------------- */ +/* + * Miscelaneous platform dependent initialisations + */ + +static void at91sam9rlek_serial_hw_init(void) +{ +#ifdef CONFIG_USART0 + at91_set_A_periph(AT91_PIN_PA6, 1); /* TXD0 */ + at91_set_A_periph(AT91_PIN_PA7, 0); /* RXD0 */ + at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_US0); +#endif + +#ifdef CONFIG_USART1 + at91_set_A_periph(AT91_PIN_PA11, 1); /* TXD1 */ + at91_set_A_periph(AT91_PIN_PA12, 0); /* RXD1 */ + at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_US1); +#endif + +#ifdef CONFIG_USART2 + at91_set_A_periph(AT91_PIN_PA13, 1); /* TXD2 */ + at91_set_A_periph(AT91_PIN_PA14, 0); /* RXD2 */ + at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_US2); +#endif + +#ifdef CONFIG_USART3 /* DBGU */ + at91_set_A_periph(AT91_PIN_PA21, 0); /* DRXD */ + at91_set_A_periph(AT91_PIN_PA22, 1); /* DTXD */ + at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_SYS); +#endif +} + +#ifdef CONFIG_CMD_NAND +static void at91sam9rlek_nand_hw_init(void) +{ + unsigned long csa; + + /* Enable CS3 */ + csa = at91_sys_read(AT91_MATRIX_EBICSA); + at91_sys_write(AT91_MATRIX_EBICSA, + csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA); + + /* Configure SMC CS3 for NAND/SmartMedia */ + at91_sys_write(AT91_SMC_SETUP(3), + AT91_SMC_NWESETUP_(0) | AT91_SMC_NCS_WRSETUP_(0) | + AT91_SMC_NRDSETUP_(0) | AT91_SMC_NCS_RDSETUP_(0)); + at91_sys_write(AT91_SMC_PULSE(3), + AT91_SMC_NWEPULSE_(2) | AT91_SMC_NCS_WRPULSE_(5) | + AT91_SMC_NRDPULSE_(2) | AT91_SMC_NCS_RDPULSE_(5)); + at91_sys_write(AT91_SMC_CYCLE(3), + AT91_SMC_NWECYCLE_(7) | AT91_SMC_NRDCYCLE_(7)); + at91_sys_write(AT91_SMC_MODE(3), + AT91_SMC_READMODE | AT91_SMC_WRITEMODE | + AT91_SMC_EXNWMODE_DISABLE | +#ifdef CFG_NAND_DBW_16 + AT91_SMC_DBW_16 | +#else /* CFG_NAND_DBW_8 */ + AT91_SMC_DBW_8 | +#endif + AT91_SMC_TDF_(1)); + + at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9RL_ID_PIOD); + + /* Configure RDY/BSY */ + at91_set_gpio_input(AT91_PIN_PD17, 1); + + /* Enable NandFlash */ + at91_set_gpio_output(AT91_PIN_PB6, 1); + + at91_set_A_periph(AT91_PIN_PB4, 0); /* NANDOE */ + at91_set_A_periph(AT91_PIN_PB5, 0); /* NANDWE */ +} +#endif + +#ifdef CONFIG_HAS_DATAFLASH +static void at91sam9rlek_spi_hw_init(void) +{ + at91_set_A_periph(AT91_PIN_PA28, 0); /* SPI0_NPCS0 */ + + at91_set_A_periph(AT91_PIN_PA25, 0); /* SPI0_MISO */ + at91_set_A_periph(AT91_PIN_PA26, 0); /* SPI0_MOSI */ + at91_set_A_periph(AT91_PIN_PA27, 0); /* SPI0_SPCK */ + + /* Enable clock */ + at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9RL_ID_SPI); +} +#endif + +int board_init(void) +{ + /* Enable Ctrlc */ + console_init_f(); + + /* arch number of AT91SAM9RLEK-Board */ + gd->bd->bi_arch_number = MACH_TYPE_AT91SAM9RLEK; + /* adress of boot parameters */ + gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; + + at91sam9rlek_serial_hw_init(); +#ifdef CONFIG_CMD_NAND + at91sam9rlek_nand_hw_init(); +#endif +#ifdef CONFIG_HAS_DATAFLASH + at91sam9rlek_spi_hw_init(); +#endif + return 0; +} + +int dram_init(void) +{ + gd->bd->bi_dram[0].start = PHYS_SDRAM; + gd->bd->bi_dram[0].size = PHYS_SDRAM_SIZE; + return 0; +} |